Isolation of Au-, Co-η1PCO and Cu-η2PCO complexes, conversion of an Ir–η1PCO complex into a dimetalladiphosphene, and an interaction-free PCO anion

Liu Leo Liu; David A. Ruiz; Fatme Dahcheh; Guy Bertrand; Riccardo Suter; Aaron M. Tondreau; Hansjörg Grützmacher

doi:10.1039/C5SC04504E

Isolation of Au-, Co-η¹PCO and Cu-η²PCO complexes, conversion of an Ir–η¹PCO complex into a dimetalladiphosphene, and an interaction-free PCO anion†

Liu Leo Liu,^ab David A. Ruiz,^a Fatme Dahcheh,^a Guy Bertrand,*^a Riccardo Suter,^c Aaron M. Tondreau^c and Hansjörg Grützmacher*^c

Author affiliations

* Corresponding authors

^a UCSD-CNRS Joint Research Chemistry Laboratory (UMI 3555), Department of Chemistry and Biochemistry, University of California San Diego, La Jolla, CA 92093-0343, USA
E-mail: guybertrand@ucsd.edu

^b Key Laboratory for Chemical Biology of Fujian Province, College of Chemistry and Chemical Engineering, Department of Chemistry, Xiamen University, Xiamen, China

^c Department of Chemistry and Applied Biosciences, ETH Zürich, Vladimir-Prelog-Weg 1, 8093 Zürich, Switzerland
E-mail: hgruetzmacher@ethz.ch

Abstract

Sodium phosphaethynolate reacts with [MCl(PDI)] (M = Co, Ir; PDI = pyridinediimine) to give metallaphosphaketenes, which in the case of iridium rearranges into a dimetalladiphosphene, via CO migration from phosphorus to the metal. Two different bonding modes of the PCO anion to CAAC-coinage metal complexes [CAAC: cyclic (alkyl)(amino)(carbene)] are reported, one featuring a strong Au–P bond and the other an η² coordination to copper. The gold complex appears to be mostly unreactive whereas the copper complex readily reacts with various organic substrates. A completely free PCO anion was structurally characterized as the [Cu(L_a)₂]⁺ (OCP)⁻ salt. It results from the simple displacement of the PCO unit of the cationic (CAAC)Cu(PCO) complex by a second equivalent of CAAC.

Supplementary files

Article information

DOI: https://doi.org/10.1039/C5SC04504E
Article type: Edge Article
Submitted: 23 Nov 2015
Accepted: 26 Dec 2015
First published: 04 Jan 2016
This article is Open Access

All publication charges for this article have been paid for by the Royal Society of Chemistry

Download Citation

Chem. Sci., 2016,7, 2335-2341

Permissions

Request permissions

Isolation of Au-, Co-η¹PCO and Cu-η²PCO complexes, conversion of an Ir–η¹PCO complex into a dimetalladiphosphene, and an interaction-free PCO anion

L. L. Liu, D. A. Ruiz, F. Dahcheh, G. Bertrand, R. Suter, A. M. Tondreau and H. Grützmacher, Chem. Sci., 2016, 7, 2335 DOI: 10.1039/C5SC04504E

This article is licensed under a Creative Commons Attribution 3.0 Unported Licence. You can use material from this article in other publications without requesting further permissions from the RSC, provided that the correct acknowledgement is given.

Chemical Science

Isolation of Au-, Co-η¹PCO and Cu-η²PCO complexes, conversion of an Ir–η¹PCO complex into a dimetalladiphosphene, and an interaction-free PCO anion†

Abstract

Supplementary files

Article information

Download Citation

Permissions

Isolation of Au-, Co-η¹PCO and Cu-η²PCO complexes, conversion of an Ir–η¹PCO complex into a dimetalladiphosphene, and an interaction-free PCO anion

Social activity

Search articles by author

Spotlight

Advertisements

Chemical Science